Perchlorate explosive.



OSWALD SILBERRAD, OF BUGKHUBST HILL, ENGLAND.

.PEBCHLOBATE EXPLOSIVE.

No Drawing Specification of Letters Patent.

Patented Oct. 8, 1912.

Application filed June 15, 1911. Serial No. 638,407.

ammonium perchlorate and a nitro-body such as nitro-toluene.

The object of this invention is to provide an improved explosive of thisnature and more particularly one which shall be plastic, powerful, cheapand of exceptional stability.

Explosives consisting of a perchlorate and a jelly of a nitro compoundand soluble nitro-cellulose have been proposed but these owing to theirlack of stability have not come into use. The explosive according to thepresent invention belongs to this class but is however free of thisdisadvantage.

This invention consists in an explosive containing 63 to 70 parts ofammonium perchlorate, 12 to 14: parts of nitrotoluene, 6 to 7 parts ofdinitrotoluene, 6 to 7 parts of nitronaphthalene, up to 6 parts of woodmeal and 0.5 to 2.5 parts of soluble nitrocellulose.

In carrying this invention into eifect according to one form the variousnitro and dinitro compounds are incorporated together, the solublenitro-cellulose added thereto and the mixture warmed untilgelatinization is complete. The wood meal and oxidizing substance arenow incorporated into the mass when the substance may be pressed intocartridges in the usual way.

In carrying my invention into effect, it is obvious that I maysubstitute the nitrotoluene (nitro methyl benzene) either partly orwholly by its analogue nitro benzene inasmuch as the product in bothcases is to all intents and purposes identical.

An explosive composed of the ingredients set out above and prepared inthe manner described has been found to possess remarkable stability,power, plasticity and efiiciency generally.

Having now described my invention what I claim as new and desire tosecure by Letters Patent is .1. A blast-ing explosive containingammonium perchlorate 63 to 70 parts, nitrotoluene 12 to 14 parts,dinitrotoluene 6 to 7 parts, nitronaphthalene '6 to 7 parts, wood mealup to 6 parts and soluble nitro-cellulose 0.5 to 2.5 parts; as setforth.

2. A plastic blasting explosive composed of nitro compounds gelatinizedby soluble nitro-cellulose and having an oxidizing substance admixedtherewith in which the jelly is composed of 12 to 14 parts ofnitrotoluene, 6 to 7 parts of dinitrotoluene, 6 to 7 parts ofnitronaphthalene and 0.5 to 2.5 parts of soluble nitro-cellulose, 63 to70 parts of ammonium perchlorate and up to -6 parts of wood meal beingincorporated in said jelly; as set forth.

3. The method of producing a plastic blasting explosive conslsting inmixing together 12 to 14 parts of nitrotoluene, 6 to 7 parts ofdinitrotoluene and 6 to 7 parts of nitronaphthalene, adding thereto 0.5to 2.5 parts of soluble nitro-cellulose, producing gelatinization ofthis mixture by the action of heat and incorporating with the resultantproduct 63 to 70 parts of ammonium perchlorate and up to 6 parts of woodmeal; as set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

OSWALD SILBERRAD.

Witnesses EDGAR WAGE,- GERALD Bm'r.

copies 0! thin client my be obtained to:

five cunts each,'by addressing the "Commissioner of Patentl, Wuhinzton,D. G."

